Crusher



May 30, 1933. o. w. BONNAFE I CRUSHER Filed Aug. 2, 1930 2 Sheets-Sheet l 17203 2 022 e7 7 oizizf' @W V I 725:5 war a 5' y 1933- o. w. BONNAFE CRUSHER Filed Aug. 2, 1930 2 Sheets-Sheet 2 \NWN Patented May 30, 1933 warren STATES PATENT OFFICE.

OLIVER W. BONNAFE, OF LYNN, MASSACHUSETTS, ASSIGNOR TO NEW ENGLAND ROAD MACHINERY COMPANY, OF BOSTON, MASSACHUSETTS, A CORPORATION OF MASSA- CHUSETTS CRUSHER Application filed August 2, 1930. Serial No. 472,579.

This invention relates to the construction of relatively heavy machinery of the general class including stone crushers wherein various members or component parts of an apparatus are subjected to relatively high and frequently repeated stresses. The Character of the Work performed by inst-allations of this type necessitates a strong, rugge construction which should also be as durable as possible to assure satisfactory performance, for it will be evident that large cumbersome parts are difficult as well as expensive to handle and to repair.

A crusher frame is representative of pieces of apparatus of this general class. These frames receive the crushing stresses, and where the material to be treated comprises rock, stone, or the like, these stresses may be imposed either on the same or on various parts of the frame in succession. It probably seldom if ever happens during the life of such a machine that more than one rock, for example of precisely the same size, contour, and hardness, finds its way to the same relative position between the crushing jaws, and consequently the apparatus is usually stressed diflferently for each rock or fragment of material which goes into it. For this reason maximum stress, which may be of the order 30 of several million pounds, may be imposed upon almost any portion of the apparatus. Under these conditions it is very difficult to keep the frames from loosening up as well as to maintain hearings or like supports for working parts in alignment.

Objects of the present invention are to provide apparatus of this general class of rugged, durable and yet relatively simple and inexpensive construction; to improve the art of building or constructing an apparatus of this character so that it may be assembled preferably fromrelatively simple parts into a rugged and durable machine; to improve the art of mounting bearings or like supports for working parts in machines of this kind; to provide improved means for reinforcing frames of this class; to provide improved means for uniting reinforcing members to parts of a frame; and also to provide an apand the like,

(1 Fig.1;

Fig. 3 is a sectional view through the frame with the yokes' in position thereon, this View being taken on an horizontal plane, the position of which is indicated by the line 3--3 of Fig. 2;

Fig. 4 is a perspective view of one of the yokes;

Fig. 5 is a detail showing the manner of mounting a shaft in the frame; and

Fig. 6 is a combined side and end eleva tional view of the bearings shown in Figs. 1 and 5.

The apparatus selected for illustration comprises a stone crusher indicated generally at 10 and having relatively fixed and movable jaws 11 and 12 respectively, the material to be treated being crushed or reduced in size as it passes between these crushing jaws. Both of the aws are mounted upon a frame comprising opposed side walls or side plates 18 and an end wall 14. As shown more clearly in Fig. 2, the side plates 13 have a series of recesses or notches 16 spaced vertically and aligned transversely of the frame in pairs along the ends thereof. Rectangular openings or recesses 17 and 18 are also spaced longitudinally along the side walls in alignment with the notches 16. The upper edge of each side wall has a rectangular cut-away portion 19 similar in shape and dimensions to the notches 16 and also has a rectangular slot or recess 21 similar to the opening 17. The slot 21 and an opening 22, similar to the openings 18, are arranged in longitudinally spaced relation in alignment with the cut-outportion 19 at the upper corner of each side wall. The fixed jaw 11 is mounted upon the end wall 14 while the movable jaw 12 is provided with trunnions 23 which are mounted in hearings on the upper portion 24 of the frame.

Power for operating the movable jaw is transmitted from a driven shaft 26 mounted 190 in bearings 27 on the side plates and equipped with a flywheel 2S and an eccentric cam 29. This cam engages a roller 31 mounted upon a rocker arm 3;, the latter bei g fast on a rotary shaft 33 1 and 5) carried in bearings 3%, 85, mounted in the side plates Motion is transmitted from the rocker arm 32 to the movable aw 12 through a linkage connection 36 in a manner well understood in this art.

Each of a series of vert 37 is disposer. transversely in pair of aligned notches 16 in the side walls. These yokes are preforabhr made from a single piece of metal of relatively high tensile strength such as ically spaced yokes rolled steel and have inwardly directed lugs 38 and 39 spaced longitudinally along the arms thereof. The openings 17 and 18 in the side plates are positioned to register with and to receive the lugs 38 and of the yokes to provide an interlocking connection between these members and the side walls. In order to give rigidity to the upper portion. of the frame and to strengthen the same, it is desirable to make the uppermostyoke ll somewhat wider than the lower yokcs 37. This top yoke is received in the cut-away portions 19 of the side plates. the h 8 and 39 of this yoke being spaced to register with and to be receivable in the openings 91 and of the side plates. Each yoke is joined to the side and en d walls along the edges thereof contiguous to these members by fusion of metal preferably by welding. as indicated at 40 in Fig. 3. i

operat on of the apparatus the crushing stresses are transmitted from the movable jaw 12 principally to the F ed jaw 11. the end wall ll and portions of the side walls adjacent to the end wall. As the stresses so transmitted are commonly of a very high order. it will be evident that there is. a tendency for the end wall ll to move from its position transversely between the side walls 13. and consequently to loosen these parts ot the frame. Vith the present onstruction however the side and end walls are held firmly in position by the embracing yokes 3? and ll. l s the end wall l-il need not n cessarily be welded to the side walls 13, it will be seen that the crushing stresses are tran m tted directly to the :nnbracing yokes 3 and 41. and that the s m transmitted by these yokes through the lugs 38 and to the side walls at points spaced from the end the f. This provides good stress distributi or the frame so that any tr idency side walls or weaving th nd wall lis so greatly reduced as to e. Furthermore, the welds be e walls and the arms of the yokcs :ZO tran mit stresses from the yokes walls. As the yokes extend lonof the side walls for a considerce, the section- .1 area of the welded for s reading of the portions is relatively large and in fact is far in excess of the area required to sustain these s, so that the interlocking connection novided by the lugs 38 and 39 may be omitted f desired. -lowever, it is desirable to use the lug... either alone or with the welded contruction to avoid imposing repeated or viratory stresses of this high magnitude entirely .pon the welded portions. The welds between the end wall and the bases of the yokes serve principally to hold the end wall in position against the supporting yokes, the latter be ng firmly held in the notches 16 so that tendency for twisting or distortion stress walls are moved outwardly to bring the lugs 38 and 3.) into the openings provided there for. The end wall 14 is then positioned between side walls at the bases of the yokes, preferably in abutment with the inner surfaces of these side plates. lVhen the parts have been thus far assembled the yokes are welded to the end and side walls, as indicated at ll). The end and side plates like the yokes are preferably made of material capablo steel.

The welding operation tends to produce some slight distortion of the side plates, particularly in the vicin ty of the bearings 3i and 35 of the shaft fill. In ordin. to function properly however, and to cooperate through the rocker 32 and roller 31 with the cam 29. it necessary for this shaftto be mounted accurately vith a relatively close clearance for machines of this character. If the bearings were bolted or otherwise fixedly secured to the side plates 13 before the welding operation took place, the resulting distortion of the side plates would cause the hearin s to bind on the shaft 33. Furthermore, as the frame for this machine is necessarily very heavy and quite large and cumbersome, it is impracticz l. to attempt to bore the holes for the bearings after the side and end plates and yolses of the frame have been assembl d and welded. In order therefore to assure proper alignment of the bearings 3st and 35, holes are formed in the side plates. Preferably the plates are burned out to provide these openings which are larger than the hearings to be received therein. The bearings are then mounted upon shaft 33 which may also have the rocker 32 mounted thereon. This shaft is arranged transversely between the side plates with the bearings 34 and 35 disposed within the openings 43, as indicated in Fig. 5. hile the shaft is held in this position in proper alignment, the space around the bearings and between the latter and the edges of the holes 413 is filled of sustaining high stresses such as in by welding so that each bearing is integral y united to the side plate with which it is associated. This assures that the bearings will be maintained in proper alignment and not only provides a practical means for mounting the bearings 34 and 35 in the side plates 13, but also makes it possible to mount the shaft 33 in a frame having yokes or other reinforcing members welded thereto in the manner previously described.

It should be understood that the present disclosure is for the purpose of illustration only, and that this invention includes all modifications and equivalents which fall within the scope of the appended claims.

I claim:

1. A frame comprising opposed side walls, an end wall disposed therebetween and in abutment therewith, one or more unitary reinforcing members connected to the end wall and extending across the latter and along the side walls, said one or more reinforcing members being connected to the side wall by fusion of metal, and other means providing a rigid interlocking connection between said one or more reinforcing members and the side walls.

2. A frame comprising opposed side walls, an end wall disposed therebetween and in abutment therewith, a series of vertically spaced unitary reinforcing members traversing the end wall and extending longitudinally of the side walls, means providing rigid interlocking connections between the reinforcing members and the side walls at points spaced from the end wall, the uppermost reinforcing member being disposed along the top of the side walls and being wider than the other reinforcing members for strengthening the upper portion of the frame.

3. A frame comprising opposed side walls, an end wall set inwardly from the ends of the side walls and in abutment with the side walls, the ends of the side walls having a series of vertically spaced recesses extending inwardly from the ends thereof substantially to the end wall, the recesses being arranged in aligned pairs to receive transversely disposed reinforcing members, a series of unitary reinforcing members disposed in the recesses and extending across the end wall and along the side walls, and means connecting the reinforcing members to the side walls.

4. A frame comprising opposed side walls, an end wall set inwardly from the ends of the side walls and in abutment with the side walls, the ends of the side walls having a series of vertically spaced. recesses extending inwardly from the ends thereof substantially to the end wall, the recesses being arranged in aligned pairs to receive transversely disposed reinforcing members, a series of unitary reinforcing members disposed in the recesses and extending across the end wall and along the side walls, the side walls having openings spaced from the end wall, and inwardly directed lugs integral with the reinforcing members and disposed in the opcnconnecting the reinforcing members to the end wall and to the side walls.

7. The method of making a frame which comprises forming vertically spaced pairs of aligned notches in the ends of a pair of side walls, placing an end wall in abutment with the side walls adjacent the inner ends of the notches, forming substantially U-shaped reinforcing members of a size to embrace the end and side walls, placing a reinforcing member in each pair of notches, and welding the inner edges of the reinforcing members to the end and side walls.

8. The method of making a frame which comprises forming vertically spaced pairs of aligned notches in the ends of a pair of side walls, forming substantially U-shaped reinforcing members of a size to embrace the side walls with an end wall therebetween, forming inwardly directed lugs integral with the arms of the reinforcing members, forming recesses in the side walls to receive the lugs, placing a reinforcing member in each pair of notches, moving the side walls outwardly to cause the lugs to enter the recesses provided therefor, positioning an end wall between the side walls and adjacent the reinforcing memhers and welding the reinforcing members to the end wall.

9. The method of making a frame which comprises forming vertically spaced pairs of aligned notches in the ends of a pair of side walls, forming substantially U-shaped reinforcing members of a size to embrace the side walls with an end wall therebetween, forming inwardly directed lugs integral with the arms of the reinforcing members, forming recesses in the side walls to receive the lugs, placing a reinforcing member in each pair of notches, moving the side walls outwardly to cause the lugs to enter the recesses provided therefor, positioning an end wall. between the side walls and adjacent the reinforcing members, and welding the rein forcing members to the end and side walls.

10. The method of making a frame which comprises vertically spacing .yokes to embrace opposed side walls, positioning an end wall between the side walls at the bases of the yokes, securing the yokes to the end and side walls, mounting shaft hearings on a shaft, forming openings in the side walls larger than the bearings, supporting the shaft with the bearings thereon in position in the openings in the side walls, and filling the space between the bearings and the openings with fused metal to secure the bearings in the side walls.

11. The methodof making a frame which comprises vertically spacing yokes to embrace opposed side walls, positioning an end wall between the side walls at the bases of the yokes, securing the yokes to the end and side 'alls, mounting shaft bearings on a shaft, burning openings in the side walls larger than the bearir gs, supporting the shaft with the bearings thereon in position in the openings in the side walls, and filling the space between the bearings and the openings with fused metal to secure the bearings in the side walls.

12. The method of making a frame which comprises vertically spacing yokes to embrace opposed side walls, positioning an end wall between the side walls at the bases of the yokes, welding the yokes to the end and side walls. mounting shaft hearings on a shaft, burning holes in the side walls larger than the bearings, supporting the shaft with the hearings thereon in position in the holes in the side walls, and filling the space between the bearings and the holes with fused metal to secure the hearings in the side walls.

13. The method of making a frame which comprises arranging a yoke longitudinally around the ends and outer sides of opposed side walls, positioning an end wall between the side walls at the base of the yoke, welding the voke at least to the side walls, mounting shaft bearings on a shaft, forming openings in the side walls larger than the bearings, supporting the shaft with the bearings thereon in position in the openings in the side walls, and filling the space between the bearings and the openings with fused metal to secure the bearings in the side walls.

11-. The method of making a frame which comprises welding reinforcing members to opposed side walls to secure the latter rigidly in spaced relation, mounting shaft bearings on shaft, burning holes in the side walls larger than the bearings, arranging the shaft transversely between the side walls with the bearings thereon disposed within the holes, and filling the space within the holes and around the bearings by welding to secure the hearings to the side walls in proper alignment.

15. A frame eomprising opposed side walls, an end wall between the side walls, vertically spaced yokes contiguous to the end and side walls and embracing the latter, means conmeeting the yokes and the walls, a shaft disposed transversely between the side walls, bearings for the shaft, the bearings being integral with the side walls.

16. A, f ame comprisin opposed side walls, an end wall between the side walls, vertically spaced yolzes contiguous to the end and side walls and embracing the latter, the yokes being united to the si of tal, a shit 4i be tween the side walls, l g the shaft, the bearings being united to the side walls by fusion of metal.

17. A frame for supporting relatiwely morable, coacting. pressure transmitting members of heavy machinery and sustaining stresses imposed during operation thereof, said frame being assembled from imlividual parts comprising oppo walls spaced to receive the pr "sure tran: nitting members therebetween, an end wall ex ending between the side walls to receive the reaction from one of said pressure transmitting members, in ans for transmitting the reaction from the other pressure transmitting member to the side walls, one or more unitary reinforcing members, each of which extends along each side wall and across the end wall in pressure transmitting relation with the latter, and means providing a rigid interlocking connection between the side walls and each of said one or more unitary reinforcing members.

18. A frame for supportin relatively movable, coacting pressure trai nttiiw' members of heavy machinery and sustainii u str cs imposed during operation thereof, said frame being assembled from indirii'lual parts comprising opposed side walls spaced to receive the pressure transmitting members therebetween, an end wall disposed transversely between the side walls to receive the reaction from one of said pressure transmitting members. means for transmitting the reaction from the other pi ire transmitting member to the side ails, and one or more unitary reinforcing members. each of w 4 nich extends along each side wall and across the end wall in pressure transmitting relation with the latter, these reinforcing members being secured to the side walls at least by fusion of metal.

19. A. frame for supporting relatively movable, coacting pressure transmitting members of heavy machinery and sustaining stresses imposed during operation thereof, ,aid frame being assembled from individual parts co1nprising opposed side walls spaced to receive the pressure transmittingmembers therebetween, an end wall disposed between the side walls and in abutting relation therewith, said end wall being adapted to receive the reaction from one of said pressure transmit ting members, scans for transmitting the reaction from the other pressure transmitting member to the side walls, and one or more unitary reinforcing members extending across the end wall in pressure transmitting relation therewith, said reinforcing members having end portions extending along the side walls and rigidly connected to the latter at points spaced from said end wall for sustaining the latter in position under working stresses.

20. A frame for supporting relatively movable, coacting pressure transmitting members of heavy machinery and sustaining stresses imposed during operation thereof, said frame being assembled from individual parts comprising opposed side walls spaced to receive the pressure transmitting members therebetween, an end wall disposed between the side walls and in abutting relation therewith, said end wall being adapted to receive the reaction from one of said pressure transmitting members, means for transmitting the reaction from the other pressure transmitting member to the side walls, and one or more unitary reinforcing members extending across the end wall in pressure transmitting relation therewith, said reinforcing members having end portions extending along the side walls and rigidly connected to the latter at points spaced from said end wall for sustaining the latter in position under working stresses, said end wall being maintained in its position between the side walls substantially entirely through its connection with said one or more reinforcing members.

21. A frame for supporting relatively movable, coacting pressure transmitting members of heavy machinery and sustaining stresses imposed during operation thereof, said frame being assembled from individual parts comprising opposed side walls spaced to receive the pressure transmitting members therebetween, an end wall disposed between the side walls and spaced inwardly from the ends of the latter to receive the reaction from one of said pressure transmitting members, means for transmitting the reaction from the other pressure transmitting member to the side walls, and one or more unitary reinforcing members rigidly connected to the end wall and extending around the side walls and rigidly connected to the latter at points s aced from the end wall, thereby securing the rame members in assembled relation.

22. A frame for supporting relatively 1novable, coacting pressure transmitting members of heavy machinery and sustaining stresses imposed during operation thereof, said frame being assembled from individual parts comprising opposed side walls spaced to receive the pressure transmitting members therebetween, an end wall disposed between the side walls and spaced inwardly from the ends of the latter to receive the reaction from one of said pressure transmitting members, means for transmitting the reaction from the other pressure transmitting member to the side 

